The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 2016
Filed:
Jun. 12, 2014
Sodick Co., Ltd., Kanagawa, JP;
Shuji Okazaki, Kanagawa, JP;
Akio Hosaka, Kanagawa, JP;
SODICK CO., LTD., Kanagawa, JP;
Abstract
A sinker electric discharge machining apparatus includes a quillto which a tool electrode is attached, and a linear motor device configured to generate a linear movement of the quill towards a workpiece. The quill includes a plate membermade of a metal or an alloy, a first reinforcing memberfixed to a front surfaceof the plate member, a second reinforcing memberfixed to the front surface of the plate member, a third reinforcing memberfixed to a back surfaceof the plate member and disposed opposite to the first reinforcing member across the plate member, and a fourth reinforcing memberfixed to the back surface of the plate member and disposed opposite to the second reinforcing member across the plate member. The quill has a cross-section that is symmetric in a width direction of the plate member.